Gingrich also did not serve in the military--he got married the first time at the age of 19 and had a child the next year so he presumably benefited from the deferments for married men and fathers (plus that was before the build-up of US forces in Vietnam).
Gingrich has a half-sister who is a lesbian so that may influence his handling of the homosexual-related issues.
I'm no Gingrich cheerleader, but if I have to choose between Gingrich and Obaam, I'll vote for Gringrich.
If I have to choose between Obama and Romney, I'm voting for a write-in.